1837.1 7 



junction iji the middle form fl eo«5/»/(7!«oMs an^/e ; central fascia of nearly uniform 

 width throughout, with, on its outer edge, a sharp angle, corresponding to that of 

 the basal patch, and more or less interrupted in the centreby grey and rust- coloured 

 scales. Ocelloid patch with very faint lustrous mai'gins, filled up with rusty-grey 

 scales, ioithout any black lines. 



The costal geminations indistinct, dull lustrous. Cilia dark grey, paler at the 

 anal angle ; with a distinct sub-apical spot, which intersects the basal line, and is 

 sometimes visible also in the apices of the cilia. 



Head, thorax, face, and palpi dark fuscous ; abdomen dark leaden-grey. 



Hind-wings white, with the base and all the margins, especially towards the 

 apex, broadly grey-brown. 



Ahiegana, Dup. — Fore-wings grey-brown, tinged with rusty-brown ; markings 

 dark brown. Basal patch with its two arms not curved, the upper slanting obliquely 

 outwards, the lower vertical, forming only a rounded or obtusely angled projection 

 where they meet ; central fascia narrow on the costa, broadening towards the anal 

 angle, with only a rounded projection on its outer edge, as in the basal patch, and 

 unintemipted in the middle. Ocelloid patch witli distinctly lustrous margins, filled 

 up with black lines, which, in the $ , are contiguous ; costal geminations distinct, 

 bright. Cilia grey ; the pale spot below the apex very indistinct, scarcely ever 

 interrupting the basal line. 



Head, thorax, face, and palpi pale fuscous ; abdomen light grey. 



Hind-wings whitish (thus not so white as in pygmceana), with the veins and 

 margins light grey. 



Pygmaana is a smoother, rather duller-looking insect, with straighter costa, and, 

 therefore, narrower and more elongate-looking wings, with a more oblique hind- 

 margin, not indented below the apex, as that of ahiegana is to a slight extent. 

 Heinemann gives 2^'" — 2 J'" as the length of the foi'e-wings in each species; 

 Herrich-Schaffer says aitejrana 5'" — h\"' ; pygmaana,^'" . Judging from wliat few 

 specimens I have seen at present, I should consider pygmceana slightly larger on 

 the whole than ahiegana. 



The question then arises whether Haworth's two specimens, from 

 which, I expect, Wilkiusou's and Stainton's descriptions were taken, 

 were really pygmceana, or were not rather ahiegana. The " three 

 longitudinal black lines of the ocellus" can certainly only belong to 

 ahiegana, which is also more "glossy" than j^ggmceana. 



An examination of one of Haworth's original specimens, still 

 extant in the collection of the British Museum, satisfies me that his 

 species was really ahiegana : this is fully confirmed by his description 

 of suhsequana, p. 418 : — 



"Alee anticcB grisece,magis lucidce, longioresque qtiam in priorihus,vix manifeste 

 cinereo-argenteo strigata. Juxta unguium ani lineolse seu potius striolse 3 tenuis- 

 simse, contiguse atrae (marginis postici). Posticse albidse angustce, apice late fusciE, 

 ciliis amplioribus quam in cceteris hujus generis. Cilia anticarum etiaiu ainpla, 

 cinerea nitidisslma. 



Habitat cum prcecedentihus (Strobilanii). 



Imago Apr. ?. 



